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Home >> Lexus >> 2017 >> GS 350 Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge / Display - Diagnostic Codes & Symptom Tests >> Meter / Gauge System >> DTC B1500: Fuel Sender Open Detected [09/2014 - 10/2015] >> Procedure

DTC B1500: Fuel Sender Open Detected [09/2014 - 10/2015]: Procedure

  1. READ VALUE USING TECHSTREAM (FUEL INPUT) 
    1. Operate the Techstream according to the display and select the Data List (Refer to DATA LIST / ACTIVE TEST [09/2014 - 10/2015] ).
      COMBINATION METER

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Fuel Input Fuel input signal/Min.: 0, Max. 127.5 Current fuel level displayed Unit: Liters.

      OK

      Fuel amount value displayed on the Techstream is almost the same as needle indication.

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY 

    (Refer to REMOVAL [09/2014 - ] )

    Result: 

    NG 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - FUEL SUCTION PLATE SUB-ASSEMBLY, FUEL TANK VENT TUBE ASSEMBLY AND BODY GROUND) 
    1. Disconnect the N40 combination meter assembly connector.
    2. Disconnect the U11 fuel suction plate sub-assembly connector.
    3. Disconnect the T16 fuel tank vent tube assembly connector.
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      N40-26 (FR) - U11-2 Always Below 1 Ω
      N40-27 (FE) - T16-3
      U11-3 - T16-2
      N40-30 (ES) - Body ground
      N40-26 (FR) - Body ground Always 10 kΩ or higher
      N40-27 (FE) - Body ground
      U11-3 - Body ground

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  3

  3. INSPECT FUEL SENDER GAUGE ASSEMBLY 
    1. Remove the fuel sender gauge assembly (Refer to REMOVAL [09/2014 - 10/2015] ).
    2. Inspect the fuel sender gauge assembly (Refer to INSPECTION [09/2014 - 10/2015] ).

    Result: 

    NG 

    REPLACE FUEL SENDER GAUGE ASSEMBLY 

    (Refer to REMOVAL [09/2014 - 10/2015] )

    Result: 

    OK 

    See step  4

  4. INSPECT FUEL SUCTION PLATE SUB-ASSEMBLY 
    1. Remove the fuel suction plate sub-assembly (Refer to REMOVAL [09/2014 - 10/2015] ).
      GTY537329Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      A-2 - B-2 Always Below 1 Ω
      A-3 - B-1

    Result: 

    NG 

    REPLACE FUEL SUCTION PLATE SUB-ASSEMBLY 

    (Refer to REMOVAL [09/2014 - 10/2015] )

    Result: 

    OK 

    See step  5

  5. INSPECT NO. 2 FUEL SENDER GAUGE ASSEMBLY 
    1. Remove the No. 2 fuel sender gauge assembly (Refer to REMOVAL [09/2014 - 10/2015] ).
    2. Inspect the No. 2 fuel sender gauge assembly (Refer to INSPECTION [09/2014 - 10/2015] ).

    Result: 

    NG 

    REPLACE NO. 2 FUEL SENDER GAUGE ASSEMBLY 

    (Refer to REMOVAL [09/2014 - 10/2015] )

    Result: 

    OK 

    See step  6

  6. INSPECT FUEL TANK VENT TUBE ASSEMBLY 
    1. Remove the fuel tank vent tube assembly (Refer to REMOVAL [09/2014 - 10/2015] ).
      GTY526607Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      A-2 - B-2 Always Below 1 Ω
      A-3 - B-1

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY 

    (Refer to REMOVAL [09/2014 - ] )

    Result: 

    NG 

    REPLACE FUEL TANK VENT TUBE ASSEMBLY 

    (Refer to REMOVAL [09/2014 - 10/2015] )